Posts Tagged ‘geometry’

Math Worksheets at Your Fingertips

January 24th, 2022

Math-Drills.com

(www.math-drills.com/)

Grades K-12, with parental supervision

This ad-supported website offers thousands of free, printable math worksheets with answer keys to help students learn, practice, and master math.

When you get to the site you’ll see a welcome message. Click on “Math Worksheets” on the top left to access worksheets on:

  • Multiplication Facts
  • Addition
  • Subtraction
  • Division
  • Algebra
  • Money Math
  • Fractions
  • Integers
  • Powers of Ten
  • Decimals
  • Geometry
  • Measurement
  • and more!

Click on any topic and a new page opens with a menu of worksheet options. Click on a worksheet title and a new page opens where you can open in your browser or download to your computer and print out the worksheet to use offline.

You’ll also find flashcards, holiday-themed math worksheets, games, and more!

Activities for Teaching Math

January 3rd, 2022

Teaching Ideas – Maths

(www.teachingideas.co.uk/subjects/maths)

Grades 1-10, with parental supervision

This UK-based website offers free ideas, activities and worksheets to help educators teach math (and science, geography, history and lots of other subjects as well).

When you get to the site, you’ll see some featured math resources and activities. The age range is in the top right corner of each box. Click ‘VIEW’ to see the worksheet. You can download each one by scrolling past the ads to the red ‘Download’ button. To find worksheets by category, roll over “Maths” in the red menu bar at the top to find choices that include:

  • Maths – Learn to understand and solve word problems for a variety of math strands, learn to add and subtract numbers of varying size, get lots of resources to help kids understand fractions, decimals, percentages, ratio and proportion.

  • Numbers– Practice number sequences, patterns, Fibonacci sequence, Kaprekar’s sequence, Pascal’s triangle, the 100 Square and more.

  • Geometry – Learn about different shapes and properties of 2D and 3D shapes. Sort shapes, match shapes, discover polygons, triangles, quadrilaterals, tangrams and more.

  • Measure – Develop estimation and practical measuring skills, learn to calculate perimeter and area as well as the volume of cubes.

There is a great deal of content beyond what’s described above and all of it can be used to supplement math studies. You’ll need to bookmark the site and make several visits to thoroughly explore it.

Note: As you explore the site, you may see comments about the resources and activities on the site that are left by visitors. You can post your comments about what you liked and/or offer suggestions for improvement too.

Interesting Math Activities for Middle School & Up!

November 22nd, 2021

Cut-The-Knot

(www.cut-the-knot.org/content.shtml)

Grades 4-12, with parental supervision

This ad-supported website offers a vast array of interactive math puzzles, lessons, and activities geared to those who have mastered basic arithmetic and are studying algebra, geometry, probability, etc.

When you get to the site you will see a brief introduction in the center of the page. Scroll below it to a menu that includes links to activities in the following areas:

  • Arithmetic
  • Algebra
  • Math Games & Puzzles
  • Logic
  • Fractals & Chaos
  • Calculus
  • Geometry
  • Probability
  • Computer Math Magic
  • Visual Illusions
  • And much more!

Click on any one of interest and a new page opens with instructions and interactives.

Students studying middle school math and beyond will have no problem navigating this site and enjoying the activities on their own.

Note: Because the site contains many randomly generated advertising banners and buttons, parents (as always) should preview the site and supervise Internet access.

Math Brought To Life!

November 15th, 2021

Dimensions

(www.dimensions-math.org/Dim_E.htm)

Grades 7-12, with parental supervision

Created by three math enthusiasts (with terrific credentials) this site offers a free film on mathematics that references the work of renown mathematicians, scientists, artists, and others in a multi-media presentation that is sure to amaze and (hopefully) make the subject matter understandable.

When you get to the site, click on “Tour/Guide” to get an overview of the course. Then click on “Watch Online” and choose “American English” to start the video in English. Of course, if you prefer, you can watch it in German, French, Spanish, Italian, Japanese, Russian and Arabic.

Back on the main page, click on “Details” so you can follow along by chapter:

  • Chapter 1, Dimension Two – Learn or review what meridians and parallels are.
  • Chapter 2, Dimension Three – Mixes “elementary” math with imagination and philosophical elements.
  • Chapters 3 and 4, Fourth Dimension – Contains more difficult mathematical concepts. However, the viewer is encouraged to pause the film and consult a reference page for additional information. As the creators explain, “you can always sit back and enjoy the pictures!”
  • Chapters 5 and 6 – Contains an introduction to complex numbers that could also be used as a refresher course. As the designers explain, “If you know nothing about complex numbers, you should push the pause button as often as you like, and try to understand using the references that we propose. These chapters are the most ‘school-like’ of the film. To thank you for your efforts, chapter 6 ends with an amazing deep zoom scene.”
  • Chapters 7 and 8 – Get an introduction to the Hopf fibration. Again the film creators explain that even though it’s not beginner’s stuff, “it is quite pretty and deserves to be understood.”
  • Chapter 9 – Shows the proof of a theorem of geometry that is relatively “elementary.” As the designers explain, “Without proofs for theorems mathematics would not exist, and we wanted to make this very clear at the end of a film that is essentially about mathematical objects.”

Each lesson or “chapter” of the film is almost 14 minutes long. Watch it in segments or sit down and watch the whole thing in one sitting. You are encouraged to use it in a way that works for you “based on your interest, your prior knowledge on the subject, or simply on your mood of the moment!”

Tutorials & Resources for Math Class

October 4th, 2021

ThoughtCo. – Math Tutorials

(www.thoughtco.com/math-4133545)

Grades PreK-12, with parental supervision

This ad-supported site has math tutorials, worksheets, and resources for all sorts of math topics for all grades.

When you get to the site, you can scroll through the many articles listed or you can choose a topic from the left side bar. The math tutorials include:

  • Geometry
  • Arithmetic
  • Pre Algebra & Algebra
  • Statistics
  • Exponential Decay
  • Functions
  • All the articles are written by experts in their field.

Be sure to check out the Worksheets by Grade and the Resources: some of the articles include Top 5 Apps for Algebra, 7 Steps to Math Success and Great Books for Teaching Counting and Number Recognition. Bookmark this page and refer back to it when you need to get your math questions answered!

Geography through Earth Sciences

June 10th, 2021

Geography4Kids.com – Geography For Kids

(www.geography4kids.com/)

All grades, with parental supervision

This is brought to you by the geniuses who developed Chem4Kids and Biology4Kids.

When you get to the site, read the introduction as it contains good info on where to start and how to navigate for best use. To get started scroll to the bottom of the page and click on the “Next Stop On Site Tour” arrow, or use the site map www.geography4kids.com/map.html that lists all of the topics, or use the menu to explore:

  • EARTH ENERGY – Explore global Geometry, electromagnetic radiation, waves and particles, solar energy, atmospheric interaction, and temperature including Fahrenheit, Celsius, and Kelvin scales.
  • EARTH STRUCTURE – Learn what the Earth is made of including the plates, mantles, the liquid inner core, the magnetic fields, rocks and minerals, and discover what tectonics has to do with earthquakes and volcanoes.
  • ATMOSPHERE – Find out what composes the atmosphere, thermosphere, stratosphere, and troposphere. Learn about temperature and air pressure, altitude, the Coriolis Force, and the Greenhouse Effect.
  • HYDROSPHERE – Discover how all kinds of water moves through the world including freshwater, seawater, and groundwater. Learn about wetlands and aquatic biomes. Learn how to identify cloud types.
  • BIOSPHERE – Investigate Earth’s Biosphere and learn about ecosystems, food chains, natural resources, and recycling.
  • BIO-GEO-CHEMICAL (BGC) CYCLES – Learn about the interactive cycles of our ecosystem that include carbon, water, oxygen, nitrogen, Iron, Phosphorus, and rocks.

You’ll also find information on climatology, weather, seasons, hurricanes, and more!

When you are through exploring each section of the site, you can take interactive quizzes to test your knowledge. A bonus feature is that this site provides links to its “sister” sites for further study in the fields of biology, chemistry, and the cosmos.

This is a terrific resource. I recommend you bookmark it to return often.

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